Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It generally contains Cu, Ni, Se, Te, Ag, Au, platinum group metals (PGM), Pb, Ba, Fe, etc. Owing to the presence of valuable metals and metalloids in the anode slime, numerous approaches have been made by the …
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7.2.1 Technological scheme of copper electrorefining The process of copper electrorefining is schematically illustrated in Fig 7.3. Anodes of 99 – 99.5 % pure copper obtained, by pyrometallurgical treatment, are prepared by casting after melting in the anode furnace. The surface area of the anode depending on the capacity of the electrolytic ...
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Sarcheshmeh copper complex (NICICO) is one of the most important copper mining and metallurgical complexes globally and is undoubtedly the most important one in Kerman, Iran (Dehghanpoor et al., 2016). 10 kg of copper anode slime was delivered to the mineral processing laboratory of the Amirkabir University of Technology for physical ...
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Anode slime is a byproduct from copper or lead electro-refining process. The copper/lead anode slime usually contain As, Sb, Bi and precious metals like gold and silver. Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, i.e. pyrometallurgy and ...
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The cost-efective, modular approach comprises leaching, filtration, and precipitation steps, and can be adapted for a variety of applications, including processing of anode slimes …
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Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration. In addition, correctly selecting the right method of leaching, purification, …
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adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A
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Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery method strongly depends on the slimes composition, mineralogy, and tellurium concentration. In addition, correctly selecting the right method of leaching, purification, …
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Copper electrorefining tests were conducted in a pilot-scale cell under commercial tankhouse environment to study the effects of anode compositions, current density, cathode blank width, and flow rate on anode slime behavior and cathode copper purity. Three different types of anodes (high, mid, and low impurity levels) were used in …
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In this paper, the hydrometallurgical method of recovering Au, Ag, Pt, Pd, Se, and Te is reviewed with copper anode slime (CAS) as an example. At present, …
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The kinetics of anode slime formation and propagation were studied in a laboratory-scale copper electrorefining apparatus. Laser-based illumination and digital image processing of videotaped records of slime movement, combined with current/time monitoring and polarization experiments, provide quantitative information about the …
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1. Introduction. Copper anode slime is the byproduct of electro-refining of copper, which often contains precious metals and is a valuable secondary resource for recovering valuable products, such as silver, from it (Ding et al., 2017, Wang et al., 2017, Yldrm et al., 2014).The predominant method for silver recovery from anode slime is …
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The Outotec electrolyte purification plant is tailored to the requirements of your raw material. Our anode slime treatment plant consists of slime collection, leaching, and dewatering using Outotec OKTOP leaching reactors and Outotec Larox slime filters.
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The Electrorefining Process Electrorefining of copper consists of electrolytically dissolving copper from impure anodes of ... but settle in the bottom of the cell as anode slime. Metals which do enter the electrolyte with copper are either precipitated as insoluble ... reduce the cost of labour, and to eliminate the practice of ...
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Anode slimes are dark in color, usually black (Fig. 1), and have very fine particles, even below 1 μm.Most anodic slime particles are generally in the 20–30 μm size range. Minority fractions are larger than 150 μm, which mostly corresponds to metallic copper that detaches from the anode or the dendritic growth of the cathode, and as a consequence …
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Anode slime is one of the important secondary resources of copper, which is obtained as a by-product during electrolytic refining of copper due to the settling of more noble metals such as gold ...
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Physicochemical Problems of Mineral Processing, 36 (2002) 123-134 Fizykochemiczne Problemy Mineralurgii, 36 (2002) 123-134 A.M AMER* PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION OF METAL VALUES Received March 5, 2002, reviewed, accepted May 28, 2002 Processing of anodic slimes from an Egyptian …
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Copper electro-refining (Cu-ER) is the principal method for producing >70% of high or 99.97% pure copper cathodes from 97-99% pure blister/fire refined-scrap copper anodes. ... The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes ...
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The Electrorefining process Electrorefining is one of a collection of electrochemical processes which are primarily concerned with the refining metals from anodes to high purity cathodes. Today, more than 80% worlds copper is produced with electrorefining, which gives the highest-purity metal product as well as best recovery of valuable impurities.
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The anode slime obtained from the copper electrorefining tank contains several valuable elements. The physico-chemical characteristics of the anode slime determines the …
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Combining conventional electrochemical measurements, laser-based visualization and digital image processing, the movement of anode slime, its spatial distribution and path of falling during the copper electrorefining process were investigated in a laboratory scale cell. Two types of anode slime, small agglomerates and fine particles were observed.
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Gravity separation has long been a cost-effective method for the mining industry, especially in the processing of precious metals. Copper anode slime contains significant amounts of gold, silver ...
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The gold powder is cast directly into granules or ingots of more than 99.99% purity without electrorefining . Selenium is recovered as a selenium residue by reduction with sulfur dioxide gas and refined through vacuum distillation. ... Unique Hydrometallurgical Process for Copper-Anode Slime Treatment at Saganoseki …
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This work focuses on the processing of anodic slimes obtained from an Egyptian copper electrorefining plant. The anodic slimes are characterized by high …
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COPPER ELECTROREFINING ANODE SLIMES IN STRONG ACID SOLUTION Sipi SEISKO*, Jari *AROMAA, ... The processing of copper anode slimes is an additional economic driver for copper ... experiments. For each test 160, 240 or 320 g of anode slime was weighed and fed into the reactor chamber along with sulfuric acid. The solid …
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Originally developed for the treatment of copper electrorefining anode slime, the Hydrometallurgical Precious Metals Process can also be used to process other raw materials containing precious metals, including some secondary raw materials or lead anode slimes. It is also possible to combine some of the process modules with other
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The cost-benefit analysis of the proposed process manifested that the profit of processing 1 t of anode slime was $ 82, and the sensitivity analysis showed that the price of Cu2Se and the Se ...
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The important methods, which have been introduced for processing of anode Copper slimes, are as follows: the pyrometallurgical process, pyro-pretreatment …
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copper anode slime. 1. INTRODUCTION China is the world's largest producer of refined copper, producing 10.1867 million tons in 2021.1 Copper anode slime is an important byproduct produced in the copper electrolytic refiningprocess, and its yield accounts for approximately 0.2− 0.8% of refinedcopper production.2 Copper anode slime is rich
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Copper electro-refining (Cu-ER) is the principal method for producing >70% of high or 99.97% pure copper cathodes from 97-99% pure blister/fire refined-scrap copper anodes. While the inert and most of less soluble impurities settle as anode slime/sludge, other soluble impurities, particularly the metalloids (group VA/15 elements or Q: As, Sb and …
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This paper presents a review of chemical composition data of the main stages of copper production from sulfide minerals, such as (1) copper minerals, (2) flotation tailings, (3) flotation concentrates, (4) …
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